BA / Mbed OS BaBoRo1

Erste version der Software für der Prototyp

mbed-os/hal/dma_api.h@4:75df35ef4fb6, 2018-03-30 (annotated)

Committer:
borlanic
Date:
Fri Mar 30 14:07:05 2018 +0000
Revision:
4:75df35ef4fb6
Parent:
0:380207fcb5c1 
commentar

Who changed what in which revision?

UserRevisionLine numberNew contents of line
borlanic 0:380207fcb5c1 1
borlanic 0:380207fcb5c1 2 /** \addtogroup hal */
borlanic 0:380207fcb5c1 3 /** @{*/
borlanic 0:380207fcb5c1 4 /* mbed Microcontroller Library
borlanic 0:380207fcb5c1 5 * Copyright (c) 2014-2015 ARM Limited
borlanic 0:380207fcb5c1 6 *
borlanic 0:380207fcb5c1 7 * Licensed under the Apache License, Version 2.0 (the "License");
borlanic 0:380207fcb5c1 8 * you may not use this file except in compliance with the License.
borlanic 0:380207fcb5c1 9 * You may obtain a copy of the License at
borlanic 0:380207fcb5c1 10 *
borlanic 0:380207fcb5c1 11 * http://www.apache.org/licenses/LICENSE-2.0
borlanic 0:380207fcb5c1 12 *
borlanic 0:380207fcb5c1 13 * Unless required by applicable law or agreed to in writing, software
borlanic 0:380207fcb5c1 14 * distributed under the License is distributed on an "AS IS" BASIS,
borlanic 0:380207fcb5c1 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
borlanic 0:380207fcb5c1 16 * See the License for the specific language governing permissions and
borlanic 0:380207fcb5c1 17 * limitations under the License.
borlanic 0:380207fcb5c1 18 */
borlanic 0:380207fcb5c1 19 #ifndef MBED_DMA_API_H
borlanic 0:380207fcb5c1 20 #define MBED_DMA_API_H
borlanic 0:380207fcb5c1 21
borlanic 0:380207fcb5c1 22 #include <stdint.h>
borlanic 0:380207fcb5c1 23
borlanic 0:380207fcb5c1 24 #define DMA_ERROR_OUT_OF_CHANNELS (-1)
borlanic 0:380207fcb5c1 25
borlanic 0:380207fcb5c1 26 typedef enum {
borlanic 0:380207fcb5c1 27 DMA_USAGE_NEVER,
borlanic 0:380207fcb5c1 28 DMA_USAGE_OPPORTUNISTIC,
borlanic 0:380207fcb5c1 29 DMA_USAGE_ALWAYS,
borlanic 0:380207fcb5c1 30 DMA_USAGE_TEMPORARY_ALLOCATED,
borlanic 0:380207fcb5c1 31 DMA_USAGE_ALLOCATED
borlanic 0:380207fcb5c1 32 } DMAUsage;
borlanic 0:380207fcb5c1 33
borlanic 0:380207fcb5c1 34 #ifdef __cplusplus
borlanic 0:380207fcb5c1 35 extern "C" {
borlanic 0:380207fcb5c1 36 #endif
borlanic 0:380207fcb5c1 37
borlanic 0:380207fcb5c1 38 void dma_init(void);
borlanic 0:380207fcb5c1 39
borlanic 0:380207fcb5c1 40 int dma_channel_allocate(uint32_t capabilities);
borlanic 0:380207fcb5c1 41
borlanic 0:380207fcb5c1 42 int dma_channel_free(int channelid);
borlanic 0:380207fcb5c1 43
borlanic 0:380207fcb5c1 44 #ifdef __cplusplus
borlanic 0:380207fcb5c1 45 }
borlanic 0:380207fcb5c1 46 #endif
borlanic 0:380207fcb5c1 47
borlanic 0:380207fcb5c1 48 #endif
borlanic 0:380207fcb5c1 49
borlanic 0:380207fcb5c1 50 /** @}*/